Cassette for thermal transfer ribbons



FIG. 1 is a perspective view of a cassette for thermal transfer ribbons embodying our design;

FIG. 2 is a top view of the cassette for thermal transfer ribbons;

FIG. 3 is a left side view of the cassette for thermal transfer ribbons;

FIG. 4 is a bottom view of the cassette for thermal transfer ribbons;

FIG. 5 is a right side view of cassette for thermal transfer ribbons;

FIG. 6 is a front view of the cassette for thermal transfer ribbons; and,

FIG. 7 is a back view of the cassette for thermal transfer ribbons. 

The ornamental design for a cassette for thermal transfer ribbons, as shown. 